Product Introduction
The AT-QPH Automatic smoothness tester is an upgraded version of the AT-PH-1, newly designed and developed as an intelligent paper and paperboard smoothness testing instrument based on the internationally accepted Bekk smoothness tester working principle. The mechanical design eliminates the traditional manual lever and weight pressure application structure, instead using a pressure sensor to apply standard pressure, greatly reducing the instrument's size and weight while providing more accurate pressure. It is used for measuring the surface smoothness of paper and paperboard and is an ideal testing device for papermaking, packaging, printing, commodity inspection, and research departments. Applicable standards: GB/T 456, JJG 62, ISO 5627.

Key Features
Precision Pressure Sensor Loading: Eliminates the traditional lever and weight structure, using a pressure sensor to apply the standard 100±2 kPa pressure, providing more accurate pressure in a smaller, lighter design.
One-Touch Fully Automatic Testing: No need for manual pressure setting—one-touch startup makes operation extremely simple and greatly improves testing efficiency.
Intelligent Auto Range Switching: Precise airflow detection technology enables the instrument to automatically identify the required range for the specimen and switch automatically, precisely controlling air release speed for different samples.
Imported Oil-Free Vacuum Pump: Lifetime maintenance-free, no oil refilling required, reliable operation, eliminating the maintenance hassles and oil mist contamination of traditional oil pumps.
7-Inch Color Touchscreen: Chinese display with touch buttons for simple, intuitive operation; quiet, fast thermal printing.
Stepper Motor Smooth Pressing: Stepper motor and high-precision load cell ensure smooth, impact-free paper pressing with pressure accuracy of 100±0.5 kPa, eliminating specimen damage from weights or levers.

Technical Specifications

FAQ
1. No power, screen off
Power not connected, loose plug, blown fuse, or emergency stop not reset. Check 220V power supply; re-plug securely; replace fuse with same rating; release emergency stop and restart.
2. Self-test failure on startup
Air circuit not reset, cylinder stuck, or sensor fault. Power cycle, clean probe of debris, wait for device to auto-return and complete self-test.
3. Values too high/low or unstable
Uneven specimen placement, dirty/creased paper surface, seal leakage, insufficient vacuum oil, or draft in environment. Place specimen flat and centered; check upper/lower platen seals; replenish special vacuum oil; test away from air vents.
4. Large variation on same sample repeat tests
Paper dust on platen, aged seals, or unstable air supply pressure. Clean platen contact surfaces after each test; replace aged seals promptly; stabilize workshop air pressure.
5. Slow pumping, slow pressure build-up
Insufficient oil, air in oil circuit, or minor line leakage. Add special vacuum oil; open exhaust valve to expel air; tighten air line fittings.
6. Cannot reach set vacuum level
Poor sealing, degraded oil, or blocked air circuit. Replace aged rubber pads; change vacuum oil regularly; clear air circuit piping.
7. Platen lift jerky or not smooth
Dust/debris on guide rails or dry transmission. Power off and clean dust from guide rails; apply small amount of grease.
8. Touchscreen unresponsive or buttons not working
Dirty screen or system lag. Wipe screen with soft cloth; restart instrument.
9. Printer not printing or blank output
No thermal paper, paper loaded backwards, or dirty print head. Reload paper correctly; clean print head; enable auto-print function.

After-Sales Service
Thank you for your inquiry. Shandong Annimet Instrument Co., Ltd., established in 2007, has dedicated nearly two decades to the R&D, production, and sales of quality testing instruments. We regard product quality as the lifeblood of our enterprise and pursue excellence in every product developed. Annimet Instrument will consistently provide the tools for your ideas and creativity. Should you have any questions, please feel free to contact our customer service team.